GPT-5.6 Terra (Non-reasoning): benchmark results

GPT-5.6 Terra evaluated with reasoning disabled. Provider: OpenAI. Released 2026-07-09. Access: API.

Unified ELO 1622 ± 1, rank #347 of 1761 rated models, from 24 benchmark results.

Strongest benchmark results

BenchmarkScoreMetricPercentile
UGI - Natural Intelligence52.63NatInt Score90.9
UGI - Writing48.2Writing Score87.5
UGI Leaderboard47.66UGI Score85.4
AA Omniscience - Software Engineering (SWE)61.2Accuracy (%)84.2
AA Omniscience - Health36.4Accuracy (%)82.8
AA-Omniscience Accuracy36.82Accuracy (%)79.6
AA Omniscience - Law27Accuracy (%)78.3
AA Omniscience - Business27Accuracy (%)77.2
AA Omniscience - Humanities & Social Sciences31.5Accuracy (%)77
AA Omniscience - Science, Engineering & Mathematics37.8Accuracy (%)75.3
Artificial Analysis Intelligence Index26.3Intelligence Index74.8
AA CritPt2Accuracy (%)70.6

Interactive version: theaggregate.ai/model?slug=gpt-5-6-terra-non-reasoning · How It Works · Data refreshed daily, snapshot 2026-09-05.